/* ===================== Variables ===================== */
:root{
  --primary: #145da0;
  --primary-dark: #0d3d6e;
  --navy: #0a2540;
  --accent: #d1373f;
  --accent-dark: #ad2b32;
  --bg-light: #f4f8fb;
  --bg-white: #ffffff;
  --text-dark: #16232f;
  --text-muted: #5c6b78;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(10,37,64,0.1);
  --topbar-h: 40px;
  --header-h: 84px;
  --font-head: 'Poppins', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
}

*{ box-sizing: border-box; margin:0; padding:0; }

html{ scroll-behavior: smooth; font-size: clamp(16.5px, 0.35vw + 15px, 19.5px); }

body{
  font-family: var(--font-body);
  color: var(--text-dark);
  background: var(--bg-white);
  line-height: 1.65;
  font-size: 1rem;
  overflow-x: hidden;
}

img{ max-width: 100%; display:block; }

a{ text-decoration: none; color: inherit; }

ul{ list-style:none; }

.container{
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

h1,h2,h3,h4{
  font-family: var(--font-head);
  color: var(--navy);
  line-height: 1.2;
}

h2{ font-size: 2.3rem; }
h3{ font-size: 1.3rem; }

.center{ text-align:center; margin-left:auto; margin-right:auto; }

.section-tag{
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin-bottom: 10px;
}

.section-lead{
  color: var(--text-muted);
  font-size: 1.08rem;
  max-width: 640px;
  margin-top: 14px;
  margin-bottom: 52px;
}

/* ===================== Buttons ===================== */
.btn{
  display: inline-block;
  padding: 15px 32px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.25s ease;
  border: 2px solid transparent;
  cursor: pointer;
}

.btn-primary{
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover{
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.btn-accent{
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-accent:hover{
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  transform: translateY(-2px);
}

.btn-ghost{
  border-color: rgba(255,255,255,0.6);
  color: #fff;
}
.btn-ghost:hover{
  background: rgba(255,255,255,0.12);
  transform: translateY(-2px);
}

.btn-ghost-dark{
  border-color: rgba(10,37,64,0.3);
  color: var(--navy);
}
.btn-ghost-dark:hover{
  background: rgba(10,37,64,0.06);
}

.btn-small{
  padding: 10px 22px;
  font-size: 0.85rem;
}

.btn-tiny{
  padding: 7px 18px;
  font-size: 0.76rem;
}

.btn-block{
  width: 100%;
  text-align: center;
}

/* ===================== Top bar ===================== */
.top-bar{
  position: fixed;
  top: 0; left:0; right:0;
  height: var(--topbar-h);
  background: var(--navy);
  color: rgba(255,255,255,0.85);
  font-size: 0.8rem;
  z-index: 1000;
  transition: transform 0.3s ease;
}
.top-bar.hide{ transform: translateY(-100%); }

.top-bar-inner{
  height: 100%;
  display:flex;
  align-items:center;
  justify-content: space-between;
}

.top-bar-left{ display:flex; gap: 22px; }
.top-bar-left a{ color: inherit; opacity:0.88; transition: opacity 0.2s ease; }
.top-bar-left a:hover{ opacity:1; }

.top-bar-right{ display:flex; align-items:center; gap: 16px; }

.top-social{ display:flex; gap: 8px; }
.top-social a{
  width: 24px; height:24px;
  font-size: 0.62rem;
  background: rgba(255,255,255,0.12);
}
.top-social a:hover{ background: var(--accent); }

/* ===================== Header ===================== */
.site-header{
  position: fixed;
  top: var(--topbar-h);
  left:0; right:0;
  z-index: 999;
  background: transparent;
  transition: all 0.3s ease, top 0.3s ease;
  padding: 18px 0;
}

.site-header.scrolled{
  top: 0;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  padding: 10px 0;
}

.nav-wrap{
  display:flex;
  align-items:center;
  justify-content: space-between;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  transition: color 0.3s ease;
}
.site-header.scrolled .brand{ color: var(--navy); }

.brand-mark{ display:flex; color: inherit; }

.brand-text{ display:flex; flex-direction:column; line-height:1.15; }
.brand-text strong{ font-family: var(--font-head); font-size: 1.15rem; }
.brand-text small{ font-size: 0.76rem; opacity: 0.8; }

.main-nav{
  display:flex;
  align-items:center;
  gap: 22px;
}

.main-nav a{
  color:#fff;
  font-weight:500;
  font-size: 0.95rem;
  white-space: nowrap;
  transition: color 0.3s ease, opacity 0.2s ease;
  opacity: 0.9;
}
.main-nav a:hover{ opacity: 1; }
.site-header.scrolled .main-nav a{ color: var(--navy); }
.main-nav a.nav-cta{ color: #fff !important; opacity:1; }

.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;
  border:none;
  cursor:pointer;
  z-index: 1001;
}
.nav-toggle span{
  width: 26px;
  height: 2px;
  background: #fff;
  transition: all 0.3s ease;
}
.site-header.scrolled .nav-toggle span{ background: var(--navy); }

/* ===================== Hero ===================== */
.hero{
  position: relative;
  min-height: 100vh;
  display:flex;
  align-items:center;
  color:#fff;
  overflow:hidden;
}

.hero-bg{
  position:absolute;
  inset:0;
  background:
    linear-gradient(120deg, rgba(10,37,64,0.90), rgba(13,61,110,0.80)),
    url('../img/web/hero-campus.jpg') center/cover no-repeat;
  z-index:-1;
}

.hero-inner{
  padding-top: calc(var(--topbar-h) + 100px);
  padding-bottom: 60px;
  display:grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 50px;
  align-items:center;
}

.eyebrow{
  display:flex;
  align-items:center;
  flex-wrap: wrap;
  gap: 12px 14px;
  margin-bottom: 26px;
}

.eyebrow-text{
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.92rem;
  color: #ff8f93;
  font-weight:600;
}

.hero h1{
  font-size: clamp(3.2rem, 5.5vw, 5.6rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -1px;
}

.hero-sub{
  margin: 28px 0 38px;
  font-size: 1.28rem;
  max-width: 620px;
  color: rgba(255,255,255,0.88);
}

.hero-actions{
  display:flex;
  gap:18px;
  flex-wrap: wrap;
}

.hero-inner-solo{
  grid-template-columns: 1fr;
  max-width: 880px;
}

.hero-image{
  display:flex;
  justify-content:center;
  align-items:flex-end;
}

.hero-image img{
  width:100%;
  max-width:480px;
  height:auto;
  border-radius:18px;
  object-fit:cover;
  box-shadow:0 20px 60px rgba(0,0,0,0.35);
}

.admissions-pill{
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 6px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 100px;
  letter-spacing: 0.5px;
}

.scroll-cue{
  position:absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  color: rgba(255,255,255,0.75);
  font-size: 0.7rem;
  letter-spacing: 2px;
}
.scroll-cue-arrow{
  animation: bounce 1.8s infinite;
  font-size: 1.1rem;
}
@keyframes bounce{
  0%,100%{ transform: translateY(0); }
  50%{ transform: translateY(8px); }
}

/* ===================== Quick Access ===================== */
.quick-access{
  padding: 70px 0 20px;
  background: var(--bg-white);
}
.quick-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 18px;
}
.quick-card{
  background: var(--bg-light);
  border-radius: 14px;
  padding: 30px 20px;
  text-align:center;
  border: 1.5px solid transparent;
  transition: all 0.25s ease;
}
.quick-card:hover{
  background:#fff;
  border-color: var(--primary);
  box-shadow: var(--shadow);
  transform: translateY(-5px);
}
.quick-icon{
  font-size: 2.1rem;
  display:block;
  margin-bottom: 14px;
}
.quick-card h4{ font-size: 1.02rem; margin-bottom: 7px; }
.quick-card p{ font-size: 0.85rem; color: var(--text-muted); }

/* ===================== About ===================== */
.about{
  padding: 100px 0 0;
  background: var(--bg-white);
}

.about-grid{
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 70px;
  align-items:center;
  padding-bottom: 90px;
}

.about-text p{ color: var(--text-muted); margin-bottom: 18px; }
.about-text h2{ font-size: 2.3rem; margin-bottom: 22px; }

.about-media{
  position:relative;
}
.about-media img{
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  width: 100%;
  height: auto;
  aspect-ratio: 0.875;
  object-fit: cover;
}
.about-badge{
  position:absolute;
  bottom: -24px;
  left: -24px;
  background: var(--accent);
  color: #fff;
  padding: 20px 26px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display:flex;
  flex-direction:column;
  line-height:1.1;
}
.about-badge strong{ font-size: 1.6rem; font-family: var(--font-head); }
.about-badge span{ font-size: 0.75rem; font-weight:600; max-width: 150px; }

.stats-strip{
  background: var(--navy);
  padding: 50px 0;
}
.stats-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align:center;
}
.stat h3{
  color: #ff8f93;
  font-size: 2.4rem;
  font-weight: 800;
}
.stat p{
  color: rgba(255,255,255,0.75);
  margin-top: 6px;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
}

/* ===================== QEC ===================== */
.qec{
  padding: 80px 0;
  background: var(--bg-white);
}
.qec-grid{
  display:grid;
  grid-template-columns: auto 1fr;
  gap: 34px;
  align-items:center;
}
.qec-icon-wrap{
  width: 84px;
  height: 84px;
  border-radius: 22px;
  background: rgba(20,93,160,0.1);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size: 2.2rem;
  flex-shrink: 0;
}
.qec h2{ font-size: 1.9rem; margin-bottom: 14px; }
.qec p{ color: var(--text-muted); }

/* ===================== Courses ===================== */
.courses{
  padding: 110px 0;
  background: var(--bg-light);
}

.course-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.course-grid-2{
  grid-template-columns: repeat(2, 1fr);
  max-width: 780px;
  margin: 0 auto;
}

.course-card{
  background: #fff;
  padding: 38px 32px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  position:relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.course-card:hover{
  transform: translateY(-8px);
  box-shadow: 0 18px 40px rgba(10,37,64,0.16);
}

.course-icon{
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.course-card h3{
  font-size: 1.32rem;
  margin-bottom: 14px;
  padding-right: 70px;
}

.course-card p{
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 20px;
}

.badge{
  position:absolute;
  top: 30px;
  right: 28px;
  background: rgba(20,93,160,0.1);
  color: var(--primary-dark);
  font-size: 0.72rem;
  font-weight:700;
  padding: 5px 12px;
  border-radius: 100px;
}

.card-link{
  color: var(--primary-dark);
  font-weight:600;
  font-size: 0.9rem;
}

/* ===================== Curriculum ===================== */
.curriculum{
  padding: 110px 0;
  background: var(--bg-white);
}

.curriculum-tabs{ max-width: 820px; margin: 0 auto; }

.tab-buttons{
  display:flex;
  justify-content:center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.tab-btn{
  background: var(--bg-light);
  border: none;
  padding: 12px 28px;
  border-radius: 100px;
  font-weight:600;
  font-family: var(--font-body);
  color: var(--navy);
  cursor:pointer;
  transition: all 0.25s ease;
}
.tab-btn.active, .tab-btn:hover{
  background: var(--primary);
  color: #fff;
}

.tab-panel{
  display:none;
  background: var(--bg-light);
  border-radius: var(--radius);
  padding: 40px;
}
.tab-panel.active{
  display:block;
  animation: fadeIn 0.4s ease;
}
@keyframes fadeIn{
  from{ opacity:0; transform: translateY(8px); }
  to{ opacity:1; transform: translateY(0); }
}

.tab-panel ul{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.tab-panel li{
  position:relative;
  padding-left: 26px;
  color: var(--text-dark);
  font-weight:500;
}
.tab-panel li::before{
  content:'';
  position:absolute;
  left:0; top: 8px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--primary);
}

/* ===================== Faculty ===================== */
.faculty{
  padding: 110px 0;
  background: var(--bg-light);
}

.faculty-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.faculty-card{
  background:#fff;
  border-radius: var(--radius);
  overflow:hidden;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}
.faculty-card:hover{ transform: translateY(-6px); }

.faculty-card img{ width:100%; height:auto; aspect-ratio: 1/1; object-fit: cover; }

.faculty-avatar-placeholder{
  width:100%;
  aspect-ratio: 1/1;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display:flex;
  align-items:center;
  justify-content:center;
  font-size: 3rem;
}

.faculty-info{ padding: 24px 26px 30px; }
.faculty-info h3{ font-size: 1.22rem; margin-bottom: 5px; }
.faculty-info span{
  display:block;
  color: var(--primary-dark);
  font-weight:600;
  font-size: 0.92rem;
  margin-bottom: 11px;
}
.faculty-info p{ color: var(--text-muted); font-size: 0.95rem; }

.activity-tag{
  display:inline-block;
  background: rgba(20,93,160,0.1);
  color: var(--primary-dark);
  font-weight:700;
  font-size: 0.82rem;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 11px;
}

/* ===================== Gallery ===================== */
.gallery{
  padding: 110px 0;
  background: var(--bg-white);
}

.gallery-grid{
  columns: 3;
  column-gap: 20px;
}
.gallery-grid img{
  width:100%;
  margin-bottom: 20px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  break-inside: avoid;
}
.gallery-grid img:hover{
  transform: scale(1.02);
  box-shadow: var(--shadow);
}

.lightbox{
  position: fixed;
  inset:0;
  background: rgba(10,37,64,0.92);
  display:none;
  align-items:center;
  justify-content:center;
  z-index: 2000;
  padding: 40px;
}
.lightbox.open{ display:flex; }
.lightbox img{
  max-width: 90vw;
  max-height: 85vh;
  border-radius: 12px;
}
.lightbox-close{
  position:absolute;
  top: 26px;
  right: 36px;
  color:#fff;
  font-size: 2.2rem;
  cursor:pointer;
}

/* ===================== CTA Banner / Form ===================== */
.cta-banner{
  background: linear-gradient(120deg, var(--primary-dark), var(--navy));
  padding: 100px 0;
  color:#fff;
}
.cta-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items:center;
}
.cta-copy h2{ color:#fff; font-size: 2.1rem; margin-bottom: 18px; }
.cta-copy p{ color: rgba(255,255,255,0.85); margin-bottom: 26px; }
.cta-points{ display:flex; flex-direction:column; gap: 12px; }
.cta-points li{ color: rgba(255,255,255,0.92); font-size: 0.95rem; }

.cta-form{
  background: #fff;
  color: var(--text-dark);
  border-radius: var(--radius);
  padding: 34px;
  box-shadow: 0 25px 60px rgba(0,0,0,0.3);
}
.cta-form h3{ margin-bottom: 20px; font-size: 1.25rem; }

.form-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 18px;
}

.cta-form label{
  display:block;
  font-size: 0.83rem;
  font-weight:600;
  color: var(--text-dark);
  margin-bottom: 16px;
}
.form-grid label.span-2{ grid-column: 1 / -1; }

.optional{ font-weight:400; color: var(--text-muted); font-size: 0.75rem; }

.cta-form input, .cta-form select, .cta-form textarea{
  display:block;
  width: 100%;
  margin-top: 6px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1.5px solid #dde3ea;
  font-family: var(--font-body);
  font-size: 0.92rem;
  background: var(--bg-light);
  color: var(--text-dark);
}
.cta-form textarea{ resize: vertical; min-height: 46px; }
.cta-form input:focus, .cta-form select:focus, .cta-form textarea:focus{
  outline: none;
  border-color: var(--primary);
}
.cta-form-note{
  margin-top: 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align:center;
}
.cta-form-note a{ color: var(--primary); font-weight:600; }

.auth-gate-lead{ color: var(--text-muted); margin-bottom: 24px; font-size: 0.92rem; }
.auth-gate-signin{ margin-top: 14px; }

/* ===================== Footer ===================== */
.site-footer{
  background: var(--navy);
  color: rgba(255,255,255,0.8);
  padding-top: 80px;
}

.footer-grid{
  display:grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand{ color:#fff; margin-bottom: 18px; }

.footer-col h4{
  color:#fff;
  font-size: 1rem;
  margin-bottom: 18px;
}
.footer-col a, .footer-col p{
  display:block;
  margin-bottom: 12px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.75);
  transition: color 0.2s ease;
}
.footer-col a:hover{ color: #ff8f93; }

.social-links{ display:flex; gap: 12px; }
.social-links a{
  width: 38px; height:38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display:flex; align-items:center; justify-content:center;
  font-size: 0.8rem;
  font-weight:700;
}
.social-links a:hover{ background: var(--primary); color:#fff; }

.footer-bottom{
  text-align:center;
  padding: 24px 0;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
}

/* ===================== Floating buttons ===================== */
.back-to-top{
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 46px;
  height: 46px;
  background: var(--primary);
  color:#fff;
  border-radius: 50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size: 1.2rem;
  box-shadow: var(--shadow);
  opacity:0;
  pointer-events:none;
  transition: all 0.3s ease;
  z-index: 500;
}
.back-to-top.visible{ opacity:1; pointer-events:auto; }
.back-to-top:hover{ background: var(--primary-dark); transform: translateY(-4px); }

.whatsapp-float{
  position: fixed;
  bottom: 28px;
  left: 28px;
  width: 52px;
  height: 52px;
  background: #25D366;
  color: #fff;
  border-radius: 50%;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow: var(--shadow);
  z-index: 500;
  transition: transform 0.3s ease;
}
.whatsapp-float:hover{ transform: translateY(-4px) scale(1.05); }

/* ===================== Reveal animation ===================== */
.reveal{
  opacity:0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in-view{
  opacity:1;
  transform: translateY(0);
}

/* ===================== Responsive ===================== */
@media (max-width: 960px){
  .hero-inner{ grid-template-columns: 1fr; text-align:center; }
  .hero-actions{ justify-content:center; }
  .hero-media{ order:-1; max-width: 260px; margin: 0 auto; }
  .hero-image{ display:none; }
  .hero-sub{ margin-left:auto; margin-right:auto; }

  .quick-grid{ grid-template-columns: repeat(3, 1fr); }

  .about-grid{ grid-template-columns: 1fr; }
  .about-media{ order:-1; max-width: 420px; margin: 0 auto; }
  .course-grid{ grid-template-columns: repeat(2, 1fr); }
  .faculty-grid{ grid-template-columns: repeat(2, 1fr); }
  .gallery-grid{ columns: 2; }
  .cta-grid{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px){
  .form-grid{ grid-template-columns: 1fr; }
}

@media (max-width: 1040px){
  .nav-toggle{ display:flex; }
  .main-nav{
    position: fixed;
    top:0; right:0;
    height: 100vh;
    width: 78%;
    max-width: 320px;
    background: var(--navy);
    flex-direction: column;
    align-items: flex-start;
    justify-content:center;
    gap: 26px;
    padding: 40px;
    transform: translateX(100%);
    transition: transform 0.35s ease;
  }
  .main-nav.open{ transform: translateX(0); }
  .main-nav a{ color:#fff !important; font-size: 1.05rem; white-space: normal; }
}

@media (max-width: 720px){
  .hide-mobile{ display:none; }
  .top-bar{ font-size: 0.72rem; }
  .top-bar-left{ gap: 14px; }
  .top-social{ display:none; }
  .top-bar-right{ gap: 10px; }

  .quick-grid{ grid-template-columns: repeat(2, 1fr); }
  .qec-grid{ grid-template-columns: 1fr; text-align:center; justify-items:center; }
  .stats-grid{ grid-template-columns: 1fr 1fr; gap: 30px; }
  .course-grid{ grid-template-columns: 1fr; }
  .faculty-grid{ grid-template-columns: 1fr; }
  .gallery-grid{ columns: 1; }
  .footer-grid{ grid-template-columns: 1fr; }
  .tab-panel ul{ grid-template-columns: 1fr; }
  .tab-buttons{ gap: 8px; }
  .tab-btn{ padding: 10px 18px; font-size: 0.85rem; }
  .whatsapp-float{ width:46px; height:46px; bottom:22px; left:22px; }
  .back-to-top{ width:42px; height:42px; bottom:22px; right:22px; }
}